180072473 has 4 divisors (see below), whose sum is σ = 205797120. Its totient is φ = 154347828.

The previous prime is 180072467. The next prime is 180072479. The reversal of 180072473 is 374270081.

It is a happy number.

180072473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (180072467) and next prime (180072479).

It is a cyclic number.

It is not a de Polignac number, because 180072473 - 2¹⁰ = 180071449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (180072479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12862313 + ... + 12862326.

It is an arithmetic number, because the mean of its divisors is an integer number (51449280).

Almost surely, 2^180072473 is an apocalyptic number.

It is an amenable number.

180072473 is a deficient number, since it is larger than the sum of its proper divisors (25724647).

180072473 is an equidigital number, since it uses as much as digits as its factorization.

180072473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25724646.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 180072473 is about 13419.1085024304. The cubic root of 180072473 is about 564.6973846099.

The spelling of 180072473 in words is "one hundred eighty million, seventy-two thousand, four hundred seventy-three".